AD NUMBER: 2004-19-09
MANUFACTURER: Robinson Helicopter
SUBJECT: Airworthiness Directive 2004-19-09
SUMMARY: This amendment supersedes an existing
emergency airworthiness directive (AD) for the Robinson Helicopter
Company (Robinson) Model R22, R22 Alpha, R22 Beta, and R22 Mariner
helicopters, that currently requires track-and-balancing certain
main rotor blades (blades),replacing blades, and determining the
age of each blade and revising the component history card or
equivalent maintenance record.